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Finding the Fourth Proportional to 74,337.50, 102,584.04 and 40,346.06

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Solution

The fourth proportional to 74,337.50, 102,584.04 and 40,346.06 is: 55,676.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,337.50 : 102,584.04 = 40,346.06 : x
  2. Step 2: Convert to fraction form
    74,337.50/102,584.04 = 40,346.06/x
  3. Step 3: Cross multiply
    74,337.50x = 102,584.04 × 40,346.06
  4. Step 4: Simplify right side
    74,337.50x = 4,138,861,832.88
  5. Step 5: Solve for x
    x = 4,138,861,832.88/74,337.50
  6. Step 6: Final answer
    x = 55,676.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.